Issue 3484

Resolves issue: http://code.google.com/p/otwarchive/issues/detail?id=3484

When you edit a work in a moderated collection, to which it has already been approved, you no longer receive the message warning you about your work showing up in the collection.

This also takes into consideration when a member of a collection is posting to the collection, and doesn't warn them.  

Also updated a mistake in my comment_spec Rspec file.